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    Impact of Regulated Deficit Irrigation on Fruit Quality and Postharvest Storage Performance of ‘Cripps Pink’ Apple

    158439_158439.pdf (122.3Kb)
    Access Status
    Open access
    Authors
    Sembok, Wan Zaliha
    Singh, Zora
    Date
    2010
    Type
    Conference Paper
    
    Metadata
    Show full item record
    Citation
    Wan Zaliha, W.S. and Singh, Zora. 2010. Impact of Regulated Deficit Irrigation on Fruit Quality and Postharvest Storage Performance of ‘Cripps Pink’ Apple, in Erkan, M. and Aksoy, U. (ed), VI International Postharvest Symposium, Apr 8 2009, pp. 155-162. Antalya, Turkey: International Society of Horticultural Science.
    Source Title
    ISHS Acta Horticulturae 877, VI International Postharvest Symposium
    Source Conference
    VI International Postharvest Symposium
    ISSN
    0567-7572
    School
    Department of Agribusiness
    Remarks

    The original publication is available at http://www.actahort.org

    URI
    http://hdl.handle.net/20.500.11937/48347
    Collection
    • Curtin Research Publications
    Abstract

    This study aimed to develop an irrigation strategy for apples to improve fruit skin colour without adversely affecting postharvest life and quality. Regulated deficit irrigation (RDI) at different levels [(i) 100%, commercial irrigation (CI) (70 L•h-1); (ii) 25% RDI (50 L•h-1); (iii) 50% RDI (35 L•h-1); and (iv) 75% RDI (20 L•h-1)] was applied from 135 days after full bloom (DAFB) continuously for 72 days till harvest. RDI (75%) significantly reduced leaf water potential as compared to CI. RDI (75%) improved fruit skin colour via enhanced accumulation of anthocyanins, increased soluble solids concentration (SSC), fruit firmness and slightly decreased fruit diameter. The RDI fruit (75%) stored for 135 days at 0±0.1°C, 90±2% RH remained firmer and had higher SSC compared to CI fruit. Similarly, RDI fruit (75%) stored for 155 days in controlled atmosphere (CA) comprising of 2.7% O2 + 1.9% CO2 at 0°C had higher SSC and fruit firmness than in CI fruit. In conclusion, RDI (75%) imposed at the late fruit development stage improved the fruit quality of ‘Cripps Pink’ apple at harvest without adversely affecting postharvest quality in cold and CA storage, and also saved irrigation water.

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